Device for centering music-rolls in musical instruments.



P. WUEST, JR. DEVIGE FOR UBNTERING MUSIC ROLLS IN MUSICAL INSTRUMENTS.

APPLICATION FILED FEB. 28, 1912. A v Patented Oct. 15; 1912.

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DEVICE FOR GENTERING MUSIC ROLLS IN MUSICAL INSTRUMENTS. APPLICATION FILED nmzs, 1912. 1,0 1,21 Patented Oct. 15, 1912.

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v P. WUEST, JR. N DEVICE FORGENTERINGMUSIC ROLLS IN MUSICAL INSTRUMENTS. 1

APPLICATION FILED 213.28, 1912. Patented Oct. 15, 1912.

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nnvron For. cEn rEnInG music-nous IN MUSICAL INSTRUMENTS.

' To all whom it may concern:

- citizen of v new and useful Be it known that I, PHILIP'WU'EST, Jr., a the United States, residing at Wioodbury, in the county of Gloucester and State of New Jersey, have invented certain Improvements in Devices for Centering. Music-Rolls in Musical Instruments, whereof the following is a description,- referenceb'eing had to the accom panying drawings and to the figures of ref- 7 erence marked thereon.

] support the trunnions for the music The invention relates more particularly to devices 'for cen ter1ng the music rolls comr 1 used 1 in automatic musical instru- An objec -v of h i e is to Provide ments.

devices whereby the. sliding sleeves whitifi ro i {may be simultaneously adjusted to shift the position of the center of the music roll to accommodate music sheets in which the perforations are-not centr'alized upon the sheet itself, so that said perforations may be ,with' devices V brought into proper regis ter with the per- Iforationsin'the tracker bar. Y i A further object of the invention is to providemechanism of the above character for "connecting the sliding sleeves which supportthe trunnions .of the justed to accomm music rolls, which devices are so connected that said 'sleeves; 'w1ll be automatically adodate slightly varying sizes ,of rolls, due to expansion andcontraction or other means, so that said musicsheet at- "obvious, and will tached'to the roll maybe maintained propto the tracker bar.

These and other 'object s will in part be in part be hereinafter more described.

'fully the drawings whichshow by way of illustration one embodiment of the invent on," Figure I,

is a front elevation part-1v in section, showing the music ing and operating devices, with my improvements applied-thereto. FigJII, is an end elevation at the right hand end of said device. Fig. III, is anend elevation at the left/hand end f n device. Fig. W; is a a top plan view thereof. Fig. V. is a diagrammatic View, showing the shiftingof the supports for the trunnions to accommodate'difl ferent lengths of rolls, without the shifting of the center of'the roll. Fig. V1; is it did- Specification o f Letters Patent.

roll support- Patented Oct. 15, 1912.

Applic'ationhld February 28, 1912. Serial No, 680,468.

grammatic view showing the manner of shifting the mechanism so as to' move the center of the 'roll relative to the tracker bar, to accommodate music sheets wherein the perforations on the It has been found in practice. that although great care is used in the forming of the music sheets, it sometimes occurs that the perforations in the music sheet are not accurately centralized upon the sheet itself. In order to bring the perforations in the sheet into proper register with the perforations in the tracker bar, some means is necessary to shift the sheet laterally so as to compensate for this non-centralized position of the perforations in the sheet.

One of the principal features of the pres are attached to the sliding sleeves to support the trunnions, which'connecting devices are so constructedthat the position of said sleeves may be simultaneously and automatically shifted to bring about a re-posi- 'tioning of the music sheet, to bring the perforations in the sheet into'proper register with the openings in the tracker bar. It is also found in practice that the music rolls which support the music sheet vary in length, through expansion and contraction under varying conditions, and unlesssome means isprovided to maintain the roll centered relative to the tracker bar, this expansion. or contraction of the roll will throw the perforations in the music sheet out of proper register with the perforations in the tracker bar.

A further feature of the present invention consists in so constructing these connecting devices for the sliding'sleeves which support the trunnions, that sleeves will be automatically and simultaneously positioned so that slight. variations in the length of the music-roll. will 1 not vary the central position. of the roll.

Referring more in detail to the drawings, 1,i-s the usual supporting frame for the musicroll and the winding roll, and also the tracker bar. The tracker bar 2, is formed with the usual perforations 3. The i winding roll 4, is mounted in suitable bear- Yl ings in the frame. and is operated by the sheet are oil? center.

cut invention is the connecting devices which said sliding .The music roll 5, is provided with the usual supporting trunnions. One of these trun nions engages a sliding sleeve 6, while the other, trunnion engages a sliding sleeve- 7. The sliding sleeves are mounted in suiiable bearings 8, in the frame 1. The sleeve 7, is connected with a re-winding mechanism, so that upon proper manipulation of the controlling devices, the sheet may be re-wound on the music roll. The means for operating the winding roll and the re-winding of the music roll, forms no part of the present in vention, and will not need further description in this connection.

The sliding sleeve 6, supporting the trunnion at one end of the music roll 5, is connected to a rod 9, which projects through the supporting bearing- 8; and is rovided with a limiting collar 10. Said ar project-s beyond. the limiting collar and is formed with a rounded end 11. The sleeve 7, at the other end of the music roll projects through the bearing 8, and the operating devices for re-winding the roll, and is provided with a. rounded end 12. A limiting collar 13, is also secured to said roll.

Mounted in a bracket 14, secured to the frame 1, is a rock shaft 15. Said rock shaft carries a downwardly projecting arm 16,

which is formed with a flat end adapted to bear against the rounded end 11, of the rod 9. Said rock shaft is also provided with a second downwardly projecting arm 17, which is'c'onnected to one end of a coil spring 18, the other end of the spring being connected to an adjustable link, shown in dotted lines at 19, in Fig. I. At the other end of the device is a bracket 20, which is provided with a rock shaft 21. Said rock shaft carries a downwardly projecting arm 22, which has a flat end adapted to bear against the rounded end12, of the rod connected with the sliding sleeve 7 -Said rock shaft'21, i formed with an upwardly projecting arm 23. The rock shaft 15, is also provided with an upwardly projecting arm 24. On the bracket 25, intermediate the ends of the frame, is a swinging lever 26, which is fulcrumed at 27, to said'bracket. This lever 26, is connected to one end of a link 28, which link at its other end is pivotally connected to the upwardly projecting arm 24:, of the rock shaft 15. The other end of the lever 26, is pivoted toone end of a link 29, which link in turn is pivotedat its other end to the upwardly projecting arm 23, on the rock shaft 21.

From the above description, it will be apparent that I have provided a series of levers and links which connect one sliding sleeve to the other sliding levers and links are so disposed that the outward movement of one sleeve will cause a corresponding outward movement of the other sleeve.

sleeve, and these Referring to the diagrammatic view in Fig. V, it will be apparent that if the roll 5, should expand as indicated in dotted lines, the sliding sleeve 6, will move outward, causing the rock shaft 15, to swing and through the link 28, swing the lever 26,

each other. The coil spring 18, operates to permit a yielding movement of both of the sliding sleeves outward or inward to accommodate varying lengths of rolls, or to allow the removal and insertion of a roll, and

when said sliding sleeves engage the trunnions of the roll, said roll will be centered relative to the tracker bar. From this construction, it will be apparent that even if the music rolls varyin length slightly through any reason, the music sheet which is properly centered on the roll, will still be maintained properly centered relative to the perforations in the tracker bar. This means above described, not only provides a positive means for properly supporting varying sizes of music rolls, but also allows the music roll to be readily removed or inserted between the sliding sleeves.

In order that thecenter of the music roll relative to the tracker bar may be shifted, I have formed the link 29, in two sections 30, and 31. These two sections have spaced ends located adjacent each other, which are formed with right and left hand threads. A sleeve 32, is formed with similar threads, and engagesthe ends of the sections 30, and 31. This sleeve 32, joins the sections of the link 29, and said link 29, will move bodily endwise for the purpose above stated. By turning the sleeve 32, be lengthened or shortened.

Referring more particularly to the diagrammatic View in Fig. VI, it will be apparent that if the link 29, is lengthened, tlnlever 26, will be moved to the dotted line position in said figure, and the rock shaft .1

21, will be moved in an opposite direction. as indicated in dotted lines in said figure. This movement of the lever 26, will, through the link 28, impart a movement to the l'ocli shaft 15, which movement will swing the arm 16, in the same direction .as the arm 22, and therefore, the entire music roll will be shifted endwise, as indicated in dotted lines in this figure. If the link 29, is shortened instead of lengthened, the music roll 5, would be shifted endwise'in an opposite rection. It will be apparent therefor through this adjustment of the lin may shift, the center of the music n tive to the tracker bar. If a music the link 29, may

therefore, is attached to .the music. roll,

' which music 7, sheet" has the perforations formed therein which are not centralized on the sheet itself; said roll with the sheet attached, may be shifted relative to the center of the tracker bar, to -properly centralize the sheet, and bring the perforations therein into proper register with the perforations of the'tracker bar. a. i

In" order to facilitate the lengthening or shortening-of the'link 29, that is, the turning of the sleeve 32, Lhave provided said *sl'eevewith a sprocket wheel 33; A short shaft 34, is mounted in the framel, and car ries a sprocket-[wheel 35,; on its outer-end, which is connected through the chain 36,

- with th'e sprocket wheel 33. Said short "shaft 34, is provided with a thumb wheel 3T,which"extends within the 2 readily side memberof the frame, to a point adjacent the end of themusic roll, so thatsaid thumb wheel is accessible for turning. The turning of this thumb wheel, through the. sprocket of the music roll ma Wheels and the connecting chains, will rotate the sleeve 32, in one direction or the other, to shift the center of the music roll.

In order that the amount of the shifting gliding sleeves may mal position, fora normal roll, I have provided an indicator pointer 38, which is mountedon a sliding bar 39, and said pointer cooperates with an indicating mark 40, which determines the normal position of the parts for the normal roll; This sliding bar 39, is pivoted to a depending arm 41, which in turn is pivoted at 42, to the bracket 21, and is'pivotally connected with a threaded nut43. r

The nut 43, engages a thread on the short shaft 44, so that as said shaft is rotated to vary the position of the sleeve 32, the nut 43, which is held from turning through its pivotal connection with the arm 41, will be moved longitudinally of the short shaft, and thereby impart a longitudinal movement to the bar 39, and a m'ovement of the pointer 38 ,relative to the indicating mark 40.

In the operation of my device, the sliding sleeves are moved away either by the movement of 'onesleeve or the other, "and the roll inserted between said sliding sleeves. These sleeves as above noted,"'wi ll position themselves automatically and simultaneouslyyso as to hold the roll wproperly centralized relative to the tracker "bar.

,When it is desired toshift the roll endwise, the thumb wheel 37, is rotated and ing the link 29, and

through "the connecting mechanism, sleeve 32, is; rotated,thus lengthening or shortencausing the music roll to move bodily endwi' 'e, in accordance with the adjustment of the link 29, and therefore, a shifting of the center of the roll relative is the center of the tracker bar. The

whereby the shi be indicated, and said e brought back to nor-' from each other,

pointer 38,. will indicate the amount of shift and will enable the operator to readily bring'the parts back to normal position for ;the normal music 'roll and music sheet wherein the perforations are properlycem.

tralized on said music sheet.

It is obvious that minor changes in the details of construction and arrangement of parts may be made, withoutdeparting from the spirit of the invention asset forth in ithe-appended claims. r Y

Havmg thus described my invention, I-

'claim: v

1. The combination with a tracker bar, of, ,inembers.v for engagingt-he trun'nions of the music roll for supporting the; same, means member moves the other supporting member in the opposite direction, and means Whereby said'su-pporting members may be simultaneouslyshifted' in the same dlrection.

' 2. The combination with a tracker bar, of

members for engaging the trunnions of the 1 music roll for supporting the same, devices for connecting said supporting members, whereby the shifting of one member .moves the other memberin the opposite direction, and devices whereby said supporting members may be shiftedfin the same direction.

3. The combination of a tracker bar, of members for supporting the music roll, devices for connectmg said members whereby mg of one supporting the shifting of one member in one direction causes ashifting of the other member in the opposite directiomyieldingmeans for holding said members in contact with the music roll, and means for shifting said members simultaneously in the same direction, for centering the music sheet relative tonthe said sliding sleeves l having .an arm for engaging each sliding member, devices for connecting said roc shafts whereby the movement of one sliding 'member imparts a movement in the opposite direction to thepther sliding member, said devices including-means wherebysaid sliding members may be simultaneously moved in the same direction.

' 6. The combination with a tracker bar, of

sliding members for engaging the trunnions of a musicfroll, a rock shaft havingan arm engaging each of the sliding members, a lever fulcrunied intermediate its ends, a link connecting the ends of the lifter with the reened.

spective rock shafts, and means whereb ened, said means including a thumb Wheel, and a pointer for indicating the amount of shift of said sliding members.

In testimony whereof, I have hereunto I signed my name atPhiladelphia, Pennsylvania, this twenty-seventh day of Febru-.

one of said links may be lengthened or short- 7. The combination With'a tracker bar, of sliding members for engaging the trunnions of a music roll, a rock shaft having an arm engaging each of the sliding members, a ary, 1912. 7 lever fulcrumed intermediate its ends, a link PHILIP WUEST, J R. connecting the ends of the lever with the Witnesses: ""7

respective rock shafts, means whereby one PRESTON F. RICE, of said links may be lengthened or short- JAMES H. BELL. 7

copies 0! t -P n may be obtained for five cents each, by addressing-the Commissioner of Eatents,

Washington, D. G. 

